cleanup for num_rows < row count
cleanup for num_rows < row count

crowdresearch/crowdsource-platform,crowdresearch/crowdsource-platform,shirishgoyal/crowdsource-platform,shirishgoyal/crowdsource-platform,crowdresearch/daemo,crowdresearch/daemo,shirishgoyal/crowdsource-platform,crowdresearch/crowdsource-platform,crowdresearch/daemo,crowdresearch/daemo,crowdresearch/crowdsource-platform,shirishgoyal/crowdsource-platform